Drying of Wet Porous Material Using a Combined Convective and Microwave Dryer of Laboratory Scale

Measurement of Absorbed Power of Glass Particle Layer on Moisture Content and Drying Rate by Combined Convective and Microwave Drying

“…The detail of the heating sample is illustrated on Fig. The heating experiment was operated similarly to the combined drying experiment in the literature [11] except for the operating time. A fine polystyrene tube was attached on the case bottom to measure the temperature of the sample by a thermocouple out of the heater=dryer before and after the heating experiment.…”

“…An experimental drying rate curve measured by the authors in the literature [11] is shown in Fig. Water grain dispersed in the wet material behaves as the free water layer in the region of L w .…”

“…Absorbed power is often obtained from the difference between applied and reflected powers during combined experiment, [5,6] and the obtained power shows a maximum in the case of polymeric gel. [10] Imakoma et al [11] developed a laboratory-scale combined convective and microwave dryer by modifying a domestic microwave oven. The absorbed power is proportional to multiplying the loss factor by the square of the electric field intensity.…”

“…[11] The combined drying rate is simulated with both the power dependency and the experimental convective-only drying rate. [11] The combined drying rate is simulated with both the power dependency and the experimental convective-only drying rate.…”